package com.yzd.learnjava.io;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import com.yzd.learnjava.util.Print;

public class Echo {
	public static void main(String[] args) throws IOException {
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		String s ;
		while((s = reader.readLine()) != null && s.length() != 0) {
			Print.print(s);
		}
	}
}
